12817907 has 2 divisors, whose sum is σ = 12817908. Its totient is φ = 12817906.

The previous prime is 12817897. The next prime is 12817921. The reversal of 12817907 is 70971821.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12817907 - 2¹⁰ = 12816883 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (12817967) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6408953 + 6408954.

It is an arithmetic number, because the mean of its divisors is an integer number (6408954).

Almost surely, 2^12817907 is an apocalyptic number.

12817907 is a deficient number, since it is larger than the sum of its proper divisors (1).

12817907 is an equidigital number, since it uses as much as digits as its factorization.

12817907 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7056, while the sum is 35.

The square root of 12817907 is about 3580.2104686736. The cubic root of 12817907 is about 234.0304523643.

The spelling of 12817907 in words is "twelve million, eight hundred seventeen thousand, nine hundred seven".